© 2014 The Aerospace Corporation
RPS Operations: Status and Extended Mission Topics
J. Mazur, P. O’Brien, M. Looper, M. Redding, J. George, and B. Blake
The Aerospace Corporation
Space Science Applications Laboratory
571-307-3915
23 September 2014
2
RPS Health Summary
• Both instruments are fully functional with no performance issues
• Thermal management is nominal
• One occurrence of a fast glitch (<50nsec risetime) on RPS-A 1PPS line
– 4/26/2014 (day 605) at 0934Z
– Occurred at apogee (L=5.77, MLT=10.24) during a relatively weak outer zone enhancement
9/1/2011 to 9/1/2014
RPS-B
3
RPS Extended Mission Items
• RPS measurement of total ionizing dose is an important contribution to questions about vehicle health
– ~6.7 rads per day behind 540 mils
– ~2.4 krads per year
• New operations mode option:– Modify coincidence to not require
triggers of back detectors
– The change would lower the incident energy requirement for protons from 60 MeV to ~30 MeV depending on the exact mode
– Would be done in campaign modes to provide a larger overlap between RPS and REPT
© 2014 The Aerospace Corporation
